Re: [PATCH 02/16] usb: typec: tcpm: Add STM32 tcpp driver
From: Marek Vasut <hidden>
Date: 2026-08-22 07:56:45
Also in:
linux-arm-kernel, linux-devicetree, linux-usb, lkml
On 8/21/26 6:23 PM, Fabrice Gasnier wrote:
From: Christian Bruel <christian.bruel@foss.st.com> Add support for the STMicroelectronics TCPP02 and TCPP03 USB-C PD protection for dual role power (DRP). It can be used with the STM32 family embedding UCPD controller.
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quoted hunk ↗ jump to hunk
+++ b/drivers/usb/typec/tcpm/st_tcpp.h@@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2026 STMicroelectronics + */ + +#ifndef __ST_TCPP_H__ +#define __ST_TCPP_H__ + +typedef void (*tcpp_vbus_cb_t)(void *data, bool vbus_present); + +int tcpp_init(struct device *tcpp); +void tcpp_deinit(struct device *tcpp); +int tcpp_get_vbus(struct device *tcpp); +int tcpp_set_vbus(struct device *tcpp, bool on, bool charge); +int tcpp_set_vconn(struct device *dev, bool on, enum typec_cc_polarity polarity); +int tcpp_attach(struct device *tcpp); +int tcpp_detach(struct device *tcpp); +int tcpp_register_vbus_notifier(struct device *dev, tcpp_vbus_cb_t cb, void *data); +void tcpp_unregister_vbus_notifier(struct device *dev);
Model the TCPP as four GPIOs and you won't need any of this horribleness. Have a look at the UCPD driver I posted two days ago, "[PATCH 2/4] usb: typec: ucpd: Add ST UCPD driver", it operates TCPP exactly that way. -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy